AR-15 UPPER RECEIVER PARTS

• 8620 M16 style carrier
  • H&M Black Nitride finish
  • Properly heat treated
  • Final grind before plating
• Carpenter 158 5.56/.223 bolt
  • Heat treated
  • Shot peened
  • Precision ground for perfect dimensions
  • H&M Black Nitride finish
  • MPI
• 4140 billet gas key
  • H&M Black Nitride Finish
  • Properly seated with Grade 8 fasteners
  • Properly staked to ensure reliability
• 4140 Cam Pin nitride treated for wear resistance
• Billet Machined Extractor
  • Machined from solid 4140 bar stock, heat treated and shot peened
  • Phosphate coated for reliable extraction
  • Extractor insert included
  • O-Ring included
• Firing pin precision machined from 17-4 H-900 Stainless Steel
• 100% USA Made

Precision built!

Carrier Features:

• Material: Billet carrier machined from 8620 steel and case hardened
• Finish: Black Nitride - advanced lower friction coating that minimizes the need for lubricants and cleaning
• Gas Key: 4130 Steel attached with Grade 8 hardware and properly staked
• Firing Pin: Machined from 8740 steel and hard chrome coated
• Forward Assist serrations
• Laser engraved Aero Precision logo
• Carrier fits DPMS compatible style AR Rifles

Bolt Features:

• Material: Case Hardened 9310 Steel
• Finish: All bolt components are shot peened and black nitride coated
• Extractor: Machined from 4340 Steel with double o-rings and double springs
• Magnetic Particle Inspected and High Pressure Tested
• High pressure bolt - external surfaces are CNC ground after heat treat for a precision fit and firing pin hole diameter is reduced to .070"
• Multi-caliber bolt designed to function with .308, 7.62x51, 6.5 Creedmoor, .338 Federal and other .308 based cartridges.

Carrier Features:

• Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
• Finish: Mil-spec Phosphate coating
• Gas Key: 4130 Steel attached with Grade 8 hardware and properly staked
• Firing Pin: Machined from 8740 steel and hard chrome coated
• Forward Assist serrations
• Laser engraved Aero Precision logo
• Carrier fits AR .308 compatible style AR Uppers and Rifles

Bolt Features:

• Material: Case Hardened 9310 Steel
• Finish: All bolt components are shot peened and phosphate coated
• Extractor: Machined from 4340 Steel with double o-rings and double springs
• Magnetic Particle Inspected and High Pressure Tested
• High pressure bolt - external surfaces are CNC ground after heat treat for a precision fit and firing pin hole diameter is reduced to .070"
• Multi-caliber bolt designed to function with .308, 7.62x51, .338 Federal and other .308 based cartridges.

BCG Includes:

• Bolt carrier
• Complete bolt
• Firing pin
• Cam pin
• Retaining pin

Outerwild Manufacturing produces our M16 BCG which is trusted by seasoned shooters and depended on by experienced builders. Our goal is to go above and beyond Mil-Spec expectations! Outerwild’s secret sauce: PRECISION GROUND. We machine and grind our BCGs to perform for tens of thousands of rounds. We grind the outside dimensions and ALL three interior dimensions of our carrier, giving our BCGs a near frictionless surface finish. The polished nickel boron coating is applied by the industry leading plater, WMD. The NiB-X coating provides a very slick surface that makes for easier cleaning and increases reliability. Properly built, no corners cut.

• M16 Style Carrier
  • Machined from 8620 Steel
  • Heat Treated
  • Final Grind Before Plating
  • Polished Nickel Boron Coating (NiB-X)
• 5.56/.223 Bolt
  
  • Machined from 9310 Steel
  • Heat Treated
  • Shot Peened
  • MPI
  • Polished Nickel Boron Coating (NiB-X)
• Billet Gas Key
  • Machined from Solid Billet of 4140 Steel
  • Properly Seated with Grade 8 Fasteners
  • Properly Staked
  • Polished Nickel Boron Coating (NiB-X)
• Cam Pin
  • Machined from 4140 Steel
  • Heat Treated and Ground
  • Polished Nickel Boron Coating (NiB-X)
• Billet Extractor
  • Machined from Solid Billet of 4140 Steel
  • Phosphate Coated
  • Extractor Insert Included
  • Viton O-Ring Included
• Firing Pin
  • Machined from 8640 Steel
  • Hard Chrome Plated
• 100% American Made

Aero Precision .308/7.62 Nickel Boron BCG is an eye catching addition to your AR build. Exacting dimensions and superior coating ensure the highest quality and correct component interface.

Features:

• No Aero 'A' Logo
• Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
• Nickel Boron coated
• Bolt is machined from 9310 steel
• MPI
• Forward Assist serrations
• Weight: 17.92oz

BCG Includes:

• Bolt carrier
• Complete bolt
• Firing pin
• Cam pin
• Retaining pin

Compatible with LR-308, SR25 and DPMS Pattern

Features:

• M16-cut carrier
• Machined from 8620 steel
• Carrier has forward assist serrations
• Black Nitride Finish - advanced lower friction coating that minimizes the need for lubricants and cleaning
• Properly staked gas key
• Chrome lined gas key and firing pin channel
• Machined from Carpenter 158 tool steel
• Shot peened
• HPT/MPI and marked
• Black o-ring insert on extractor

Aero Precision No Logo M16 cut colt carrier group. Machined from 8620 Tool Steel (carrier) and 9310 Steel (bolt). Black Nitride finish, properly staked gas key, shot peened, HPT tested and black o-ring insert on extractor. Made in the U.S.A.

• Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
• Carrier has forward assist serrations
• Shrouded firing pin
• Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)
• Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked.
• 5.56 Bolt is shot Peened and MPI
• Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
• Tool Steel Extractor
• High quality BCG

Features:

• M16-cut carrier
• Machined from 8620 steel
• Carrier has forward assist serrations
• Mil-Spec Phosphate Coating
• Properly staked gas key
• Chrome lined gas key and firing pin channel
• Machined from Carpenter 158 tool steel
• Shot peened
• HPT/MPI and marked
• Black o-ring insert on extractor

The GEMTECH Suppressed Bolt Carrier is a drop-in replacement and will allow the shooter to choose between suppressed (S) and unsuppressed (U) settings without any permanent modifications to the firearm. No longer will you need to change gas blocks, buffers, or any other components. Not only that, but with the GEMTECH Suppressed Bolt Carrier, there is a reduction in carrier speed and less felt recoil, bringing the cyclic rate of the suppressed rifle down to unsuppressed levels. And in some systems, testing has shown that it can actually bring it LOWER than unsuppressed levels.

NOTE: This carrier is designed to operate with full power 5.56 and 300BLK ammunition, and will not cycle with subsonic ammo.
While it can be used for subsonic 300BLK, more reliable cycling is had in the Unsuppressed setting when using subsonic 300BLK ammo.

• 8620 M16 style carrier
  • H&M Black Nitride finish
  • Properly heat treated
  • Final grind before plating
• 9310 5.56/.223 bolt
  • Heat treated
  • Shot peened
  • H&M Black Nitride finish
  • MPI
• 4140 billet gas key
  • H&M Black Nitride Finish
  • Properly seated with Grade 8 fasteners
  • Properly staked to ensure reliability
• 4140 Cam Pin nitride treated for wear resistance
• Billet Machined Extractor
  • Machined from solid 4140 bar stock, heat treated and shot peened
  • Phosphate coated for reliable extraction
  • Extractor insert included
  • O-Ring included
• Firing pin precision machined from 17-4 H-900 Stainless Steel
• 100% USA Made